Someone plz help me I will give brainliest

Answer:

C. 452.16 cm2

Step-by-step explanation:

A= π r^2 = π · 12^2 ≈ 452.38934 or 452.38

The closest answer to that listed is C

formula:(A = π r²)

π = 3.14

r(radius)^2= radius to the second power.

Answer:

13/3 x 31/6 would be your reciprocals I'm pretty sure

Step-by-step explanation:

Answer:

b- 4/3

Step-by-step explanation:

remember that slope is rise over run

Answer:

it is true because you would divide by a negative

Answer:

a) length = 3 and width = 6

Area of the rectangle = 3 × 6 = 18 cm²

b)  length = 7 and width = 2

Area of the rectangle = 7 × 2 = 14 cm²

c)  length = 5 and width = 4

Area of the rectangle = 5× 4 = 20 cm²

Step-by-step explanation:

Step(i):-

Given perimeter of the paper = 18 cm

we know that the paper has a rectangle shape

The perimeter of the rectangle = 18 cm

 2( l + w ) = 18

a)

we choose length = 3 and width = 6

The perimeter of the rectangle = 2( 3+6) = 18 cm

Area of the rectangle = 3 × 6 = 18 cm²

b)

we choose length = 7 and width = 2

The perimeter of the rectangle = 2( 7+2) = 18 cm

Area of the rectangle = 7 × 2 = 14 cm²

c)

we choose length = 5 and width = 4

The perimeter of the rectangle = 2( 5+4) = 18 cm

Area of the rectangle = 5× 4 = 20 cm²

Answer:

1/10

Step-by-step explanation:

;)

Answer: 3/5

Step-by-step explanation:

60/100 = 0.60 = 60%

3/5 = 0.60 = 60%

Answer:

B

Step-by-step explanation:

RU intersect the angle

Answer:

A hemisphere (three-dimensional object) is generated by rotating the two-dimensional figure about the line y=2.

Step-by-step explanation:

The graph shows a figure of semicircle. When it is rotated by its top it will produce a hemisphere of diameter 4 units.

Answer:

[tex]\frac{1}{4}[/tex]

Step-by-step explanation:

Just take the larger exponent and subtract the smaller exponent and it becomes --> [tex]\frac{1}{2^{2}}[/tex]

[tex]\frac{1}{2^{2}}[/tex] = [tex]\frac{1}{4}[/tex]

Answer:  \frac{2}{5}  ; or, write in decimal form:  0.4 .

Step-by-step explanation:

Rewrite as:

_______________________

    [tex]\frac{4x}{7} = \frac{8}{35}[/tex] ;

________________________

Now, "Cross-factor multiply":

that is:

_____________________

 → Given:   [tex]\frac{a}{b} =\frac{c}{d}[/tex]  ;

    → ad = bc ;  (b≠0 ; d≠0) ;

_____________________

As such:

 4x * 35 = 7 * 8 ;

_______________________

We can divide one side of the equatiuon by "4" ; and one side by "7" :

  [tex]\frac{4x*35}{4*7} = \frac{7*8}{4*7}[/tex] ;

_______________________

We can simplify the "left-hand side":

 "4/4 = 1 " ; and "35/7 = 5 " ; & we are left with "x * 5" ; or "5x " .

________________________

We can simplify the "right-hand side":

 "7/7 = 1 " ; and: "8/4 =2 " ; to get: "2/1" ; which equals "2".

_________________________

So; we have:  " 5x = 2 " ; Solve for "x" ;

__________________________

  Divide each side of the equation by "5" ; to isolate "x" on one ide of the equation; & to solve for: "x" ;

__________________________

  " 5x/5 = 2/5 " ;  We cancel out the "5x/5" to "1x"; which equals "x":

    → x = [tex]\frac{2}{5}[/tex]  ;  or, write in decimal format:  "x = 0.4" ;

___________________________

\frac{2}{5}

____________________________

Hope this is helpful!  Best wishes in your academic pursuits—and within the "Brainly" community!

____________________________

Answer:

[tex]x = 0.4[/tex]

Step-by-step explanation:

[tex]\frac{7}{4} x \frac{4}{7} = \frac{7}{4} x \frac{8}{35}[/tex]

Reduce the number with the greatest common factor 7

[tex]\frac{1}{4} x 4x= \frac{7}{4}x\frac{8}{35}[/tex]

[tex]x=\frac{7}{4}x\frac{8}{35}[/tex]

[tex]x=7x\frac{2}{35}[/tex]

[tex]x=\frac{2}{5}[/tex]

Answer:

The Answer is F

Step-by-step explanation:

first you do the first pair of parenthesis which out give you

24 - (3•2•2) Then you do the second pair of parenthesis, in which would give you 24 - 12 which is equal to 12.

Answer:

B

Step-by-step explanation:

But I don’t really know I struggle with this

Answer:

It's D

Jsbdjsndnsndbksjdjsjdndj

Answer: 10.5 :) good luck!

Step-by-step explanation:

Answer:

Step-by-step explanation:

10.5

Answer

600:120

Step-by-step explanation:

5+1 = 6

720/6 = 120

1 = 120

5 = 120 x 5 = 600

Answer:

3.3 meters

Step-by-step explanation:

h(3)=-9.8(3)^2+30(3)+1.5

=-88.2+90+1.5

=3.3

Answer:

C 15

Step-by-step explanation:

20÷4x3=15

Answer:

C. 15

Step-by-step explanation:

If B's side length is 20, that means in the ratio 3:4 the 4 represents B's side length.

Multiply both sides of the ratio by 5:

15: 20

The answer is 15.

Answer:

=−24y9

Step-by-step explanation:

4y2(−6y7)

=4y2*(−6y7)

=4*y2*(−6)*y7

=(4*(−6))*(y2*y7)

=−24*y9

Answer:

first one is 8/5

2. -2/4

3.-3/2

4.-5/2

Answer:

5-8=3 by subtractions you have to do is go well for

Answer:

80

Step-by-step explanation:

Answer:

x =-7. .y=6

Step-by-step explanation:

3x + 2y = -9

(X – Y = -13)×3

3x + 2y = -9

3x – 3y = -39

5y = 30

y=6

3x +2(6)=-9

3x=-21

x=-7

Answer:

4.26363636364 or this fraction 4 and 6590909090/25000000000

Step-by-step explanation:

Answer:

8, 10, 5

Step-by-step explanation:

7+8=15, 7+10=17, 7+5=12. You’re basically substituting the numbers in for n and seeing if its greater than or equal to 12.

Answer:

288

Step-by-step explanation:

1. Use the formula: P*T=N

P = percent, T = Total, and N is the other number.

2. So, P*T=N, therefore, 25%*T=72

3. Simplify .25*T=72

4. So get the Total (T) by itself, you have to divide both sides by .25

5. T = 72/.25

6. 288

answer:

yes, because they have a common difference and it makes sense. in order to determine if this is a function, you would have to find their difference for each column. the x column has a difference of 2 for all. similarily, the y column has a difference of 2 for all. therefore, it is a function.

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Answer:

No

Step-by-step explanation:

X=1    Y=0

Y-12X+15+3X^2-16X+13-Y=3X^2

-12X+15-16X+13=0

-28X+28=0

X=1

Y=3-16+13=0